Commit-ID: 0bc252f430d6a3ac7836d40f00d0ae020593b11b
Gitweb: http://git.kernel.org/tip/0bc252f430d6a3ac7836d40f00d0ae020593b11b
Author: Joerg Roedel <joerg.roedel@xxxxxxx>
AuthorDate: Fri, 22 May 2009 12:48:05 +0200
Committer: Joerg Roedel <joerg.roedel@xxxxxxx>
CommitDate: Thu, 28 May 2009 18:06:47 +0200
amd-iommu: make sure only ivmd entries are parsed
The bug never triggered. But it should be fixed to protect against
broken ACPI tables in the future.
[ Impact: protect against broken ivrs acpi table ]
Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
arch/x86/kernel/amd_iommu_init.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 53f93db..a3a2b98 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -906,6 +906,8 @@ static int __init init_unity_map_range(struct ivmd_header *m)
switch (m->type) {
default:
+ kfree(e);
+ return 0;
case ACPI_IVMD_TYPE:
e->devid_start = e->devid_end = m->devid;
break;
--
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